Reinforced Type and Piercing Type Spiral Duct Specification Table

附錄二 加強型及沖孔型螺旋風管規格表
管  徑   螺旋間距 補強溝間距 厚 度 (mm)
inch mm mm mm 0.5 0.6
6" 150 120 30
7" 175 120 30
8" 200 120 30
9" 225 120 30
10" 250 120 30
11" 275 120 30
12" 300 120 30
13" 325 120 30
14" 350 120 30
15" 375 120 30
16" 400 120 30
17" 425 120 30
18" 450 120 30
19" 475 120 30
20" 500 120 30
22" 550 120 30
24" 600 120 30
26" 650 120 30
28" 700 120 30
30" 750 120 30
32" 800 120 30
34" 850 120 30
36" 900 120 30
38" 950 120 30
40" 1000 120 30
44" 1100 120 30
48" 1200 120 30
52" 1300 120 30
56" 1400 120 30
60" 1500 120 30
64" 1600 120 30
68" 1700 120 30
72" 1800 120 30

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